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<?php |
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namespace Backpack\CRUD\app\Http\Controllers\Operations\Concerns; |
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use Illuminate\Support\Facades\Route; |
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use Illuminate\Support\Str; |
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trait HasForm |
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{ |
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/** |
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* Set up a GET and POST route, for an operation that contains a form. |
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*/ |
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protected function formRoutes(string $operationName, bool $routesHaveIdSegment, string $segment, string $routeName, string $controller): void |
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{ |
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$secondSegment = $routesHaveIdSegment ? '/{id}/' : '/'; |
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$thirdSegment = Str::of($operationName)->kebab(); |
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$getFormMethod = 'get'.$operationName.'Form'; |
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$postFormMethod = 'post'.$operationName.'Form'; |
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Route::get($segment.$secondSegment.$thirdSegment, [ |
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'as' => $routeName.'.'.$getFormMethod, |
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'uses' => $controller.'@'.$getFormMethod, |
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'operation' => $operationName, |
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]); |
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Route::post($segment.$secondSegment.$thirdSegment, [ |
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'as' => $routeName.'.'.$postFormMethod, |
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'uses' => $controller.'@'.$postFormMethod, |
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'operation' => $operationName, |
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]); |
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} |
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/** |
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* Set up the default configurations, save actions and buttons |
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* for a standard operation that contains a form. |
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*/ |
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protected function formDefaults(string $operationName, string $buttonStack = 'line', array $buttonMeta = []): void |
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{ |
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// Access |
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$this->crud->allowAccess($operationName); |
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// Config |
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$this->crud->operation($operationName, function () use ($operationName) { |
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// if the backpack.operations.{operationName} config exists, use that one |
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// otherwise, use the generic backpack.operations.form config |
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if (config()->has('backpack.operations.'.$operationName)) { |
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$this->crud->loadDefaultOperationSettingsFromConfig(); |
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} else { |
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$this->crud->loadDefaultOperationSettingsFromConfig('backpack.operations.form'); |
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} |
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// add a reasonable "save and back" save action |
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$this->crud->addSaveAction([ |
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'name' => 'save_and_back', |
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'visible' => function ($crud) use ($operationName) { |
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return $crud->hasAccess($operationName); |
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}, |
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'redirect' => function ($crud, $request, $itemId = null) { |
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return $request->request->has('_http_referrer') ? $request->request->get('_http_referrer') : $crud->route; |
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}, |
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'button_text' => trans('backpack::crud.save_action_save_and_back'), |
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]); |
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}); |
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// Default Button |
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$this->crud->operation(['list', 'show'], function () use ($operationName, $buttonStack, $buttonMeta) { |
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$this->crud->button($operationName)->view('crud::buttons.quick')->stack($buttonStack)->meta($buttonMeta); |
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}); |
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} |
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/** |
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* Method to handle the GET request and display the View with a Backpack form. |
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*/ |
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public function formView(?int $id = null): \Illuminate\Contracts\View\View |
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{ |
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if ($id) { |
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// Get entry ID from Request (makes sure its the last ID for nested resources) |
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$this->data['id'] = $this->crud->getCurrentEntryId() ?? $id; |
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$this->data['entry'] = $this->crud->getEntryWithLocale($this->data['id']); |
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} |
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$this->crud->setOperationSetting('fields', $this->crud->fields()); |
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$this->data['crud'] = $this->crud; |
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$this->data['title'] = $this->crud->getTitle() ?? Str::of($this->crud->getCurrentOperation())->headline(); |
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$this->data['operation'] = $this->crud->getCurrentOperation(); |
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if ($this->crud->getOperationSetting('save_actions')) { |
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$this->data['saveAction'] = $this->crud->getSaveAction(); |
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} |
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$this->data['formAction'] = $this->crud->getOperationSetting('form_action'); |
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$this->data['formMethod'] = $this->crud->getOperationSetting('form_method'); |
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return view($this->crud->getOperationSetting('view') ?? 'crud::inc.form_page', $this->data); |
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} |
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/** |
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* Method to handle the POST request and save the form. |
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* It performs the validation, authorization and redirect according to the save action. |
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* But it does NOT save the data. That should be done in the given $formLogic callback. |
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* |
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* @return array|\Illuminate\Http\RedirectResponse |
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*/ |
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public function formAction(?int $id = null, callable $formLogic) |
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{ |
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if ($id) { |
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// Get entry ID from Request (makes sure its the last ID for nested resources) |
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$id = $this->crud->getCurrentEntryId() ?? $id; |
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$entry = $this->crud->getEntryWithLocale($id); |
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} |
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// execute the FormRequest authorization and validation, if one is required |
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$request = $this->crud->validateRequest(); |
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$request = $this->crud->getStrippedSaveRequest($request); |
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// register any Model Events defined on fields |
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$this->crud->registerFieldEvents(); |
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// perform the actual logic, that developers give in a callback |
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($formLogic)($request ?? null, $entry ?? null); |
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// save the redirect choice for next time |
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$this->crud->setSaveAction(); |
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return $this->crud->performSaveAction($id); |
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} |
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} |
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Laravel-Backpack /
CRUD
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This check looks for parameters that have been defined for a function or method, but which are not used in the method body.